| 摘要 |
The ends (5, 6), (5a, 6a) of at least one lever pair (7), (7a) are fixed with articulated joints to the back mirror surface; the other ends of the intersecting levers pair are fixed with articulated joints to the elements (8, 9), (8a, 9a), mounted slidably on the guides (10, l0a), correspondingly, placed in parallel to the vertical mirror surface (1) and to the horizontal surface at the height of the first ends (5, 6) of the first lever pair (7), and the first ends (5a, 6a) of the second lever pair (7a). The elements (8, 9), (8a, 9a) of both lever pairs are joined with the driving unit (11) and with the switching on/off unit (13) . |
